titanium dioxide rutile companies in china

Anatase titanium dioxide (TiO2) is a widely used food-grade additive that imparts various functionalities to food products. It is a naturally occurring mineral that has been extensively studied for its safety and effectiveness in food applications. TiO2 is classified as GRAS (Generally Recognized As Safe) by the FDA (Food and Drug Administration) and is approved for use in a wide range of food products, including beverages, confectionery, and pharmaceuticals.

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Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors Lithopone B301, Lithopone B311 powder itself may vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant might be used, like small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

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Rutile TiO2's significance extends beyond its aesthetic benefits. In the pigment industry, it is the most widely used white pigment due to its superior whiteness and brightness. It imparts excellent covering power and gloss to paint, plastics, and paper, enhancing their overall quality. Moreover, its UV absorbing capabilities make it an essential component in sunscreen formulations, protecting the skin from harmful ultraviolet radiation.

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